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1. |
Which one of the following is correct?(a) A ∪ (B – C) = A ∪ (B ∩ C′ ) (b) A – (B ∪ C) = (A ∪ B′) ∩ C′ (c) A – (B ∩ C) = (A ∩ B′) ∩ C (d) A ∩ (B – C) = (A ∩ B) ∩ C |
Answer» (b) A – (B ∪ C) = A ∩ (B ∪ C)′ A. A ∪ (B – C) = A ∪ (B ∩ C′) B. A – (B ∪ C) = A ∩ (B ∪ C)′ = A ∩ (B′ ∪ C′) C. A – (B ∩ C) = A ∩ (B ∩ C)′ = A ∩ (B′ ∪ C′) D. A ∩ (B – C) = A ∩ (B ∩ C′) Hence B is the correct option. |
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